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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/03/14 20:20:33 UTC
[jira] [Commented] (SPARK-13869) Remove redundant conditions while
combining filters
[ https://issues.apache.org/jira/browse/SPARK-13869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15193953#comment-15193953 ]
Apache Spark commented on SPARK-13869:
--------------------------------------
User 'sameeragarwal' has created a pull request for this issue:
https://github.com/apache/spark/pull/11670
> Remove redundant conditions while combining filters
> ---------------------------------------------------
>
> Key: SPARK-13869
> URL: https://issues.apache.org/jira/browse/SPARK-13869
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Sameer Agarwal
> Priority: Minor
>
> We should modify the existing CombineFilters rule in catalyst to remove redundant conditions while combining individual filter predicates. For instance, queries of the form table.where('a === 1 && 'b === 1).where('a === 1 && 'c === 1) should be correctly optimized to table.where('a === 1 && 'b === 1 && 'c === 1) (instead of table.where('a === 1 && 'a === 1 && 'b === 1 && 'c === 1))
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